react-native-ui-lib/src/components/textField/validators.js

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import _isEmpty from "lodash/isEmpty";
import { EmailValidator } from 'commons-validator-js';
const urlRegEx = /^(?:(?:(?:https?|ftp):)?\/\/)(?:\S+(?::\S*)?@)?(?:(?!(?:10|127)(?:\.\d{1,3}){3})(?!(?:169\.254|192\.168)(?:\.\d{1,3}){2})(?!172\.(?:1[6-9]|2\d|3[0-1])(?:\.\d{1,3}){2})(?:[1-9]\d?|1\d\d|2[01]\d|22[0-3])(?:\.(?:1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.(?:[1-9]\d?|1\d\d|2[0-4]\d|25[0-4]))|(?:(?:[a-z0-9\u00a1-\uffff][a-z0-9\u00a1-\uffff_-]{0,62})?[a-z0-9\u00a1-\uffff]\.)+(?:[a-z\u00a1-\uffff]{2,}\.?))(?::\d{2,5})?(?:[/?#]\S*)?$/i; //eslint-disable-line
const decimalNumberRegEx = /^-?\d+[.,]?\d+$/;
const integerRegEx = /^-?\d*$/; // allows empty string
const priceRegEx = /^[0-9]{1,9}([.][0-9]{1,2})?$/;
const validators = {
  required: (value = '') => !_isEmpty(value),
  email: (value = '') => new EmailValidator().isValid(value),
  optionalEmail: (value = '') => {
    // Allow empty strings
    if (_isEmpty(value)) {
      return true;
    }
    return new EmailValidator().isValid(value);
  },
  url: (value = '') => urlRegEx.test(value),
  number: (value = '') => integerRegEx.test(value) || decimalNumberRegEx.test(value),
  price: (value = '') => priceRegEx.test(value)
};
export default validators;